English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

In this thesis, two bucephalid trematode parasites Rhipidocotyle campanula andR. fennica, which use the same first (Anodonta anatina) and second intermediate(Rutilus rutilus) host were studied. The aim was to investigate the effect oftemperature on one of the key processes in the transmission of these parasites:1) the emergence of cercarial larvae from A. anatina over short (1 h) and 2) long(throughout the annual cercarial shedding period, from May to October) timeperiods as well, as on 3) mussel survival and 4) the seasonal timing of cercarialrelease. In addition, the aim was to study how the cercarial shedding traits arelinked to the 5) geographical occurrence and abundance of the Rhipidocotylespecies. In the experimental studies, the cercarial emergence by R. fennicaincreased significantly with increasing temperature over short and long timeperiods, while that by R. campanula was unaffected by temperature. R.campanula clearly started seasonal cercarial release earlier and at a lowertemperature than R. fennica. Survival of mussels, especially cercariae-sheddingmussels, was lower at higher temperature, and the shedding of R. campanulacercariae was associated with higher mussel mortality than the shedding of R.fennica. The average duration of the seasonal cercarial release period of bothspecies was unaffected by temperature at the individual host level, but at thehost population level the cercarial shedding period of R. fennica (but not of R.campanula) was longer at higher temperature. The field study showed that theoccurrence, mean prevalence and abundance of R. fennica – in accordance withthe experimentally observed association of cercarial release with hightemperature – decreased from the south (61–64 °N) to the low north (65–66 °N),but this pattern was not detected in R. campanula

ecological parasitology and immunology

Effect of Short-Term Temperature Change on Cercarial Release by Rhipidocotyle fennica (Trematoda, Bucephalidae) from the Freshwater Bivalve Host, Anodonta anatina